Yes and no. Lets talk about one bar, and one voice only, four quarter notes, on E, set to piano. "ding, ding, ding, ding"
Use the "meni" and "voices" a pil-down carrot of menu, to select "voice 2"
Now, you are ready to add what WOULD be Voice 2, and let think of this as a guitar playing eighth notes on D, "ding-ding, ding-ding, ding-ding, ding-ding"
At this point you have two problems that I will try to show below
As it uses quarter notes,
Voice 1 "ding, ding, ding, ding" does not support the structure that the eighth note driven
Voice 2 "ding-ding, ding-ding, ding-ding, ding-ding" requires.
This is easy to fix within a short bar or two passage.
Change Voice 1 from quarter notes to "tied" dual eighth notes thus the REVISED VOICE 1
Voice 1 (r) "di tied ng, di tied ng, di tied ng, di tied ng" will sound the same as before, but using eighth notes supports the OLD VOICE TWO
Voice 2 (o) "ding-ding, ding-ding, ding-ding, ding-ding"
HOWEVER, written on the same bar, they will only have ONE VOICE
To make Voice 2 a different instrument, you need to insert a separate staff for this second voice. I have a score with two separated voices. Message me and I might be able to share it as a Crescendo file and as a PDF